SMA Technical Specification

The SMA (sub miniature A) connector was developed in the 1960's for use with.141 semi-rigid cable (RG402) upto frequencies of 18GHZ. SMA connectors have threaded coupling interfaces and are 50 ohm impedance. The maximum useable frequency of cabled SMA connectors is limited by the type of coaxial cable which the connector can terminate. They are used in applications where higher frequencies, miniaturisation and size reduction are key considerations. Microwave uses include transitions from Coax to Waveguide and transitions to Microstrip printed circuit board traces. SMA connectors are also used in amplifiers, attenuators, filters, mixers, oscillators and switches. SMA PLUG SMA JACK Products are manufactured in accordance with MIL-C-39012. The above specifications are typical, although some variations may occur within the range. For more detailed technical data on specific products, technical data sheets can be supplied.

ELECTRICAL   SEMI-RIGID CABLES FLEXIBLE CABLES   RG402 RG405 RG58 RG316 IMPEDANCE 50 OHMS FREQUENCY RANGE DC TO 18GHZ DC TO 12.4GHZ INSULATION RESISTANCE 5000 MOHMS MIN. INNER CONTACT RESISTANCE 2.0 mOHMS MAX. OUTER CONTACT RESISTANCE 2.0 mOHMS MAX. WORKING VOLTAGE 500V 335V 500V 335V DIELECTRIC WITHSTANDING VOLTAGE (RMS) 1000V 750V 1000V 750V VSWR 1.05+0.005f 1.07+0.008f 1.15+0.001f 1.15+0.002f INSERTION LOSS 0.6FREQ. GHZ dB MAX. TESTED @ 6GHZ (CABLE FIXING STYLES ONLY RF LEAKAGE -90dB @ 2.5GHZ MECHANICAL & ENVIRONMENTAL MATING TORQUE 0.79Nm to 0 1.13Nm (7to 10in. lbs) DURABILITY 500 CYCLES WITH CONTACT 100 CYCLES WITHOUT CONTACT TEMPERATURE RANGE -65°C TO +165°C MATERIALS BODY AND COUPLING NUT   Flexible Cable Fixing BRASS, NICKEL PLATED Semi-rigid Cable Fixing BRASS, GOLD PLATED PCB and Panel Mount BRASS, NICKEL PLATED Surface Mount and End Launch BRASS, GOLD PLATED PIN BRASS, GOLD PLATED CONTACT BERYLLIUM COPPER, GOLD PLATED FERRULE BRASS, NICKEL PLATED INSULATOR TEFLON HARDWARE BRASS, NICKEL PLATED OR BRASS, GOLD PLATED Request specific product information